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Triss [41]
3 years ago
10

Please help me out as soon as you can. Really need help.

Physics
1 answer:
olga nikolaevna [1]3 years ago
4 0
The answer would be 6 because 2.0x3= 6

(newton’s 2nd law)

mark me brainliest
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A 3.1 kg ball is dropped from the top of a 38 m tall building. What is the speed of the ball when it is halfway from the buildin
Archy [21]

Answer:

19.3m/s

Explanation:

Use third equation of motion

v^2-u^2=2gh

where v is the velocity at halfway, u is the initial velocity, g is gravity (9.81m/s^2) and h is the height at which you'd want to find the velocity

insert values to get answer

v^2-0^2=2(9.81m/s^2)(38/2)\\v^2=9.81m/s^2 *38\\v^2=372.78\\v=\sqrt[]{372.78} \\v=19.3m/s

4 0
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3 years ago
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snow_lady [41]

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8 0
3 years ago
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Your answer should be precise to 0.1 m/s. Use a gravitational acceleration of 10 m/s/s. At it lowest point, a pendulum is moving
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Explanation:

It is given that,

Speed, v₁ = 7.7 m/s

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v_2^2=v_1^2-2gh

v_2^2=(7.7)^2-2\times 10\times 1

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4 0
4 years ago
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Yuri [45]

Answer:

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Explanation:

4 0
3 years ago
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